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Öğe Atypical articulation of the cervical rib and first rib(Springer, 2024) Şenocak, Eyüp; Tuncer, Kutsi; Aydın, Yener; Oğul, HayriThe cervical rib is an additional rib arising from the transverse process of the seventh cervical vertebra. This rib may terminate free in soft tissue or may be attached to the first rib. The cervical rib is a congenital anomaly that occurs in less than 1% of the general population and sometimes causes severe symptoms of thoracic outlet syndrome. Hereby, we report a 13-year-old boy with an atypical articulation between the left seventh cervical rib and the left first thoracic rib.Öğe Bilateral simultaneous primary patellar giant cell tumors(Springer, 2023) Aydın, Fahri; Oğul, Hayri; Tuncer, Kutsi; Kantarcı, MecitGiant cell tumor is a relatively frequent benign bone tumor; that is usually exhibited in the epiphyseo-metaphyseal region of long bones. Computed tomography and magnetic resonance imaging may show cortical thinning and endosteal scalloping of the bone cortex in giant cell tumors. In radiologic imaging, the giant cell tumor of the bone is a heterogeneous mass because it contains many components, such as solitary mass, cystic areas, and bleeding. The occurrence of giant cell bone tumor in the patella is a rare condition and in this letter, we have reported the unusual coexistence of giant cell tumor on the bilateral patella at the same time. To the best of our knowledge, there is no reported case in the literature of bilateral patellar giant cell tumors.Öğe Coexistence of right cervical rib and left rudimentary 1st thoracic rib(Springer, 2023) Tuncer, Kutsi; Ulas, Ali Bilal; Aydın, Yener; Ogul, Hayri; Eroğlu, AtillaRib anomalies are rare congenital anomalies that do not usually cause additional symptoms, can be seen together with some other developmental defects, and whose frequency varies according to ethnicity and age in the society. Congenital anomalies of the ribs include short rib, pseudoarthrosis of the first rib, intrathoracic rib, pelvic rib, cervical rib, forked rib, rib fusion, and rib bridging. In this study, the coexistence of the right cervical rib and the left rudimentary 1st thoracic rib was presented in a 56-year-old female case.Öğe Correction to: The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort(2023) Güçlü, Derya; Oğul, Hayri; Ünlü, Elif Nisa; Tuncer, Kutsi; Köse, Mehmet; Kantarcı, Mecit; Eren, SuatSeismic behavior of an isolated bridge is analyzed in the frequency domain under the effects of non-stationary ground motions. For dynamic solutions, different ground environments are considered by simulating non-stationary quakes that can be represented from bedrock to soft ground level. In the simulations, power spectral functions and filtered white noise model are adopted for spectral densities of the earthquake excitations. Various computer algorithms have been developed for earthquake simulations, establishing the bridge finite element model and stochastic solutions. Twenty simulated ground motions are used for each soil profile and the parameters of Rayleigh dispersion are estimated by evaluating the system responses for each ensemble. A number of peak response factors dependent on soil conditions are presented for seismic responses. In addition, extreme value distributions of the responses are shown with the probability of exceeding functions and tables. The responses are discussed for the specific exceedance level of probabilities used in probabilistic design process. The stochastic analyses generally yielded responses consistent with time domain solutions. Exceedance probability functions of the peak responses were obtained in a close relationship. However, the probability distributions of the responses decomposed for the soft soil case and they displayed a wider dispersion even for low exceedance levels. The peak responses are expressed with some exceedance probabilities. In the estimation of response variations, this study showed the practicality of the frequency domain method and the results revealed higher peak response factors and variances for softer soil conditions. Furthermore, this study indicated that the frequency domain procedure is an effective tool in the obtaining of non stationary seismic responses.Öğe Corticosteroid, Platelet-Rich Plasma, and Ozone Injections for Sinus Tarsi Syndrome(2023) Toy, Serdar; Tuncer, Kutsi; Topal, Murat; Aydın, AliBackground: Sinus tarsi syndrome is characterized by permanent pain on the anterolateral side of the ankle due to chronic inflammation characterized by fibrotic tissue remnants and synovitis accumulation after repeated traumatic injuries. Few studies have documented the outcome of injection treatments for sinus tarsi syndrome. We sought to determine the effects of corticosteroid and local anesthetic (CLA), platelet-rich plasma (PRP), and ozone injections on sinus tarsi syndrome. Methods: Sixty patients with sinus tarsi syndrome were randomly divided into three treatment groups: CLA, PRP, and ozone injections. Outcome measures were visual analog scale, American Orthopedic Foot and Ankle Society Ankle-Hindfoot Scale (AOFAS), Foot Function Index, and Foot and Ankle Outcome Score before injection compared with 1, 3, and 6 months after injection. Results: At the end of months 1, 3, and 6 after injection, significant improvements were observed in all three groups compared with baseline (P < .001 for all). At months 1 and 3, improvements in AOFAS scores were similar in the CLA and ozone groups; those in the PRP group were lower (P = .001 and P = .004, respectively). At month 1, improvements in Foot and Ankle Outcome Score were similar in the PRP and ozone groups and higher in the CLA group (P < .001). At 6-month follow-up, there were no significant differences in visual analog scale and Foot Function Index results among the groups (P > .05). Conclusions: Ozone, CLA, or PRP injections could provide clinically significant functional improvement for at least 6 months in patients with sinus tarsi syndrome.Öğe Detection of the glenoid bare spot by non-arthrographic MR imaging, conventional MR arthrography, and 3D high-resolution T1-weighted VIBE MR arthrography: comparison with CT arthrography(2023) Özel, Mehmet Ali; Oğul, Hayri; Köksal, Ali; Köse, Mehmet; Tuncer, Kutsi; Eren, Suat; Kantarcı, MecitObjectives To determine the diagnostic accuracy of non-arthrographic MR imaging, conventional MR arthrography, and 3D T1-weighted volumetric interpolated breath-hold examination (VIBE) MR arthrography sequences as compared with a CT arthrography in the diagnosis of glenoid bare spot. Methods A retrospective study of 216 patients who underwent non-arthrographic MR imaging, conventional MR arthrography, VIBE MRI arthrography, and CT arthrogram between January 2011 and March 2022 was conducted. The diagnostic accuracy of non-arthrographic MR imaging, direct MR arthrography, and VIBE MRI arthrography in the detection of glenoid bare spot was compared with that of CT arthrography. All studies were reviewed by 2 MSK radiologists. Interobserver agreement for MR imaging and MR arthrographic findings was calculated. Results Sixteen of 216 patients were excluded. Twenty-three of 200 shoulders had glenoid bare spot on CT arthrographic images. The glenoid bare spot was detected in 11 (47.8%) and 7 (30.4%) patients on conventional non-arthrographic MR images and in 18 (78.3%) and 16 (69.6%) patients on conventional MR arthrograms by observers 1 and 2, respectively. Both observers separately described the bare spot in 22 of 23 patients (95.7%) on 3D volumetric MR arthrograms. Interobserver variabilities were fair agreement for conventional non-arthrographic MR imaging (κ = 0.35, p < 0.05), moderate agreement for conventional MR arthrogram (κ = 0.50, p < 0.05), and near-perfect agreement for 3D volumetric MR arthrogram reading (κ = 0.87, p < 0.05). Conclusions A 3D high-resolution T1-weighted VIBE MR arthrography sequence may yield diagnostic performance that is comparable with that of CT arthrography in the diagnosis of glenoid bare spot.Öğe Magnetic resonance arthrography with positional manoeuvre for the diagnosis of synovial fold of posterior shoulder joint capsule(2024) Keleş, Papatya; Oğul, Hayri; Tuncer, Kutsi; Sakcı, Zakir; Ay, Mutlu; Kantarcı, MecitObjectives: The objective of this study is to prospectively assess the effectiveness of shoulder magnetic resonance (MR) arthrograms with positional manoeuvres in detecting posterior synovial folds. Methods: Two radiologists independently assessed all axial MR arthrograms in internal rotation, neutral position, and external rotation for the presence of a posterior synovial fold. The diagnostic performances of the MR arthrograms were then compared, with results validated through arthroscopy. Results: Arthroscopy was performed on 81 of the 150 patients included in the study. A posterior synovial fold was identified arthroscopically in eleven of these patients. Measurements of the posterior synovial fold obtained in external rotation and the neutral position of the arm showed a significant correlation with arthroscopic results (p < 0.05). For detecting the posterior synovial fold with arthroscopic correlation, the sensitivity and specificity values for observer 1 and observer 2 were 100-81.4% and 100-88.6%, respectively, for MR arthrograms in the neutral position; 100-52.9% and 100-62.9% for MR arthrograms in external rotation; and 100-95.7% and 81.8-98.6% for MR arthrograms in internal rotation. There was a fair agreement for MR arthrography in external rotation for detecting posterior synovial folds, while MR arthrograms in internal rotation and neutral position showed near-perfect and significant interobserver agreement. Conclusion: The rotational positions of the humeral neck during MR arthrographic examination can influence the diagnostic specificity and sensitivity of axial MR arthrograms in detecting the posterior synovial fold. Clinical relevance statement: The posterior synovial fold can mimic a posterior labral detachment. Therefore, its correct identification is crucial in order to avoid unnecessary surgical procedures. Key points: Movement of the shoulder may introduce variability in MR arthrography appearance. Rotation of the humeral neck during MR arthrography can affect diagnoses in posterior synovial fold detection. Given that posterior synovial folds can imitate posterior labral detachment, their correct identification is crucial to avoid unnecessary surgical procedures.Öğe Spontaneous stairlike fracture of sternum in multiple myeloma(2023) Tuncer, Kutsi; Köse, Mehmet; Oğul, Hayri...Öğe Spontaneous stairlike fracture of sternum in multiple myeloma(Elsevier Masson s.r.l., 2024) Tuncer, Kutsi; Kose, Mehmet; Ogul, Hayri[No abstract available]Öğe The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort(2023) Güçlü, Derya; Oğul, Hayri; Ünlü, Elif Nisa; Tuncer, Kutsi; Köse, Mehmet; Kantarcı, Mecit; Eren, SuatObjective: To describe the aponeurotic expansion of supraspinatus tendon (AEST) and biceps tendon abnormalities with magnetic resonance (MR) arthrographic examinations and determine their prevalence in patients, we performed a high-resolution 3D direct MR arthrography. Materials and methods: This was a retrospective study of 700 shoulder MR arthrograms performed between May 2010 and January 2022. Extension in the coronal plane of an AEST on 3D fat-suppressed T1-weighted volumetric interpolated breath-hold examination (VIBE) MR arthrography was identified. Based on its morphology, the AEST on MR arthrography was divided into four subtypes: absence of tendinous thickness in the bicipital synovial surface or intra-synovial tendon-like structure in the bicipital groove, thin and flat tendinous thickness ≥1 mm of bicipital synovium, oval tendinous structure less than half the size of the adjacent biceps tendon, oval tendinous structure more than half the size of the adjacent biceps tendon, and oval tendinous structure larger than the adjacent biceps tendon. Based on its origin and termination, aponeurotic expansions can be divided into three subtypes: proximal pulley zone, middle humeral neck zone, and distal myotendinous junction zone. Association with the biceps synovium of the AEST was categorized into three types: intra-synovial, extra-synovial, and trans-synovial. Results: An AEST in the anterior shoulder joint in 3D VIBE MR arthrography images was identified in 63 (9%) of 700 arthrograms. The most common arthrographic type of AEST was type 1-this was detected in 39 of 63 patients. The most common course type of the AEST was anteriorly midline. The most common distal insertion type was at the tenosynovial sheath of the long head of the biceps tendon (LHBT) in the middle humeral neck zone-this was detected in 31 of 63 patients. There were only 10 MR arthrograms biceps tendon abnormality, including 4 biceps agenesis and 6 split ruptures. Conclusion: A 2D and high-resolution 3D MR arthrography can demonstrate the anatomical detail around the bicipital groove and facilitate the differentiation between a biceps tendon anomaly and an AEST. On high-resolution 3D MR arthrographic images, the AEST tends to be in the anterior midline and anteromedial portions of the biceps synovium with intra-synovial, extra-synovial, and trans-synovial courses and its three different insertion types.Öğe Vertebral involvement of Erdheim-Chester disease: an unusual mimic of vertebral metastasis(2023) Oğul, Hayri; Güzel, Yunus; Tuncer, Kutsi; Çankaya, Bahar; Kantarcı, Mecit...
